Triple
T2952759
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | PCC streetcar |
E79857
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object |
Canadian Car and Foundry
Canadian Car and Foundry was a major Canadian manufacturer of railway rolling stock, aircraft, and other transportation equipment active primarily in the 20th century.
|
E315082
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Canadian Car and Foundry | Statement: [PCC streetcar, manufacturer, Canadian Car and Foundry]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Canadian Car and Foundry Context triple: [PCC streetcar, manufacturer, Canadian Car and Foundry]
-
A.
Fisher Body
Fisher Body was a major American automobile body manufacturer that became a key division of General Motors and played a central role in early 20th-century auto industry labor history.
-
B.
J. B. Ford and Company
J. B. Ford and Company was a 19th-century American publishing house known for issuing popular literary and religious works.
-
C.
Carron Company
Carron Company was a prominent 18th–19th century Scottish ironworks best known for pioneering cast-iron production and manufacturing the “carronade” naval cannon.
-
D.
Pittsburgh Locomotive and Car Works
Pittsburgh Locomotive and Car Works was a prominent 19th-century American manufacturer of steam locomotives and railroad cars that later became part of the American Locomotive Company.
-
E.
Cooke Locomotive and Machine Works
Cooke Locomotive and Machine Works was a prominent 19th-century American manufacturer of steam locomotives that later became part of the American Locomotive Company (ALCO).
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Canadian Car and Foundry Triple: [PCC streetcar, manufacturer, Canadian Car and Foundry]
Generated description
Canadian Car and Foundry was a major Canadian manufacturer of railway rolling stock, aircraft, and other transportation equipment active primarily in the 20th century.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Canadian Car and Foundry Target entity description: Canadian Car and Foundry was a major Canadian manufacturer of railway rolling stock, aircraft, and other transportation equipment active primarily in the 20th century.
-
A.
Fisher Body
Fisher Body was a major American automobile body manufacturer that became a key division of General Motors and played a central role in early 20th-century auto industry labor history.
-
B.
J. B. Ford and Company
J. B. Ford and Company was a 19th-century American publishing house known for issuing popular literary and religious works.
-
C.
Carron Company
Carron Company was a prominent 18th–19th century Scottish ironworks best known for pioneering cast-iron production and manufacturing the “carronade” naval cannon.
-
D.
Pittsburgh Locomotive and Car Works
Pittsburgh Locomotive and Car Works was a prominent 19th-century American manufacturer of steam locomotives and railroad cars that later became part of the American Locomotive Company.
-
E.
Cooke Locomotive and Machine Works
Cooke Locomotive and Machine Works was a prominent 19th-century American manufacturer of steam locomotives that later became part of the American Locomotive Company (ALCO).
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ad8b1276588190a374a0b12e0f7bdf |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad98fe4b688190a0f68c4f80cd6f8f |
completed | March 8, 2026, 3:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b0fc82d1248190869beffffc0bf956 |
completed | March 11, 2026, 5:24 a.m. |
| NEDg | Description generation | batch_69b0fd25e07c819088b2b1bcef4cf54e |
completed | March 11, 2026, 5:27 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b100ecbee081908832ddec0efdc751 |
completed | March 11, 2026, 5:43 a.m. |
Created at: March 8, 2026, 2:57 p.m.